Location: - Primarily in the submandibular gland (∼ 80% of cases)- Parotid gland (∼ 20% of cases)

Etiology: Dehydration or trauma

Clinical features: - Sudden, significant pain while eating- Partial swelling of the glands

Diagnostics:- Sonography- Sialography (rarely)- Possibly x-ray of the skull (particularly the base of mouth)

Complications: acute or chronic sialadenitis

Treatment: - Conservative: NSAIDs, gland massage, warm compresses, sour candies (to promote salivary flow).- Dilatation of the salivary duct or ultrasonic lithotripsy